Global Positioning System (GPS) is a navigational aid originally developed for the military. The system simply receives signals. It is the applied technology that gives the GPS its versatility.

If you have ever used map and compass, you will understand a little about how the GPS works. In order to find your position on a map, you need to have three points of reference. The intersecting line from the reference points is where you are. Map and compass work uses triangulation (bearings), GPS uses trilateration (distances) to calculate location. Satellites orbiting the earth emit unique signals that can be received by a GPS. The GPS software interprets the signal, identifying the satellite that it came from, where it was located, and the time that it took for the signal to reach the system. Once the receiver has both time and distance it begins to determine position.

Three satellites provide the intersection point and the fourth is used to check that the positioning is accurate. Accuracy depends upon the synchronization of atomic clocks in the satellites with the clock in the GPS system. Although the clock in the GPS is not
atomic, utilizing the fourth satellite gives it that functionality as the internal clock adjusts itself to correct any discrepancy discovered.

GPS has gone far beyond its initial military application. Drivers can find their way through city streets, long distance trekkers use the technology to cross unfamiliar terrain, mariners and pilots use GPS enhanced data to cross the seas and skies.

In–vehicle GPS can be integrated into the car entertainment system or can be installed as a removable device. These systems need to tell the driver where he/she is and how to reach their destination. The information includes road directions plus relevant features along the way such as rest stops, gas stations, points of interest, etc. Auto GPS uses voice commands so that the driver can concentrate on the road.

Hikers and trekkers use similar technology, but normally without the inclusion of road systems on their devices. Mapping software defines the territory that the hiker will encounter. The user can enter waypoints (points of reference) so they can return using the same route. They can add points of interest such as water sources, possible campsites, and other items of interest on their trail. However, the portability demanded by hikers will also limit the functionality of the system as small screens mean that some detail will be lost.

It is GPS technology that is used to track individuals on home arrest, to trace missing pets, stolen vehicles, and missing people. Small systems can be incorporated into pet collars and wristwatches. As long as the receiver is active, it can be found.

Marine and aviation GPS units are sophisticated and specialized. The principles involved are the same as any standard system; the software is much more highly developed.

Any fisherman, who is using a fish finder on his boat, is using a GPS that is enhanced by sonar and tracking devices. Units have been developed for use on float tubes also -– as GPS technology advances, the systems become more and more compact and their uses
more and more extensive.

If you are considering purchasing a GPS, make sure that it can be updated easily. This is especially true if you buy a multi–function GPS or one that is used where conditions change regularly. An in–vehicle GPS soon loses its usefulness if it is not updated as road systems change.

Updates vary according to the device being used. They can come in CD/DVD packages or as computer downloads. The user can purchase maps specific to the area in which the GPS will be used or a range of maps and routes. These are available from GPS software
companies who will charge proportionally to the sophistication of the software.

GPS units vary in price according to their usefulness. It is possible to buy units for less than one hundred dollars to units costing more than one thousand dollars. What your needs are
will be a factor in the cost of your unit. If you are a backpacker then portability is a major consideration. If you are a trucker, you need to be able to find a delivery point as quickly and conveniently as possible. Whatever device you go for, cost is generally related to quality. Buy the best you can afford.

How GPS Works is from Best GPS Software

After all, what is the point of a GPS navigator if you do not actually have it with you? For sure, a car-mounted unit is ideal when you are on the move, but not so good if for example – a rental car is a necessity, or if you enjoy the outdoors and involved in a recreational pursuit. In these situations, a portable or hand-held GPS system can be the ideal accessory.

Of course, there is a variety of GPS tracking software packages, many with similar features, but prior to committing to one, it can pay to do some research. Here are some of the popular GPS software packages -

Rand McNally’s Street Finder is one of the most famous packages. Split in two distinct ways – either displays a map that had previously been entered on the system, or switches to a scheduled route and follows the turn-by-turn directions. One nice feature to the Rand McNally software is the ability to download points of interest. This is a useful function if in a new borough and needing a restaurant, grocery store, or gas station.

Magellan’s Nav Companion is a further GPS software package that’s user friendly. In addition to the usual maps and route display, it is possible to log-on to your position, get an idea of the distance to your destination, and the speed traveling.

If on a recreational pursuit, such as mountain biking, camping or hiking, these little devices can come in extremely handy. For the mountain bike trip – track the elevation to see if still on course, for the campers or hikers – program the device to recognize the campsite. This is one way to make certain of returning to camp before dark sets in.

MarcoSoft’s Quo Vadis 3.0 is a lesser-known program but still worth looking at. This map system offers detailed American maps, in addition to a selection of European maps – 12 countries in total. One key feature to this package is the ability to scroll from map to map, while still keeping you present located centered on screen.

Gps Tracking Software Options is from Best GPS Software

The GPS system was developed originally for military operations, but there are now new ways of using GPS in everyday life. You will find GPS receivers in the newest car models. But did you know that you can turn your mini laptop into a GPS device?

You can do this by simply installing a relatively cheap and compact receiver, and companion mapping software. Even if they only cost you $60 to 150, do you really need GPS? It is a fact that GPS is saving lives and property across the nation. The tunnel under the English Channel would have been crooked if the French and British crew -who were working simultaneously from both ends – did not use GPS. In real life, you will need GPS in the following instances:

Road trips

Imagine never again getting lost in the middle of your trip, and all because you took the time to plan your route on your GPS device. With turn by turn visual and audible directions you can get to where you are going by the most direct route possible. Many software packages allow you to locate nearby restaurants, gas stations and hotels. Want to know how far you’ll have to wait for your next Starbucks? Just enter “Starbucks” and you’ll know exactly how long until your next coffee fix.

For emergencies

GPS devices help you to determine the nearest police station or hospital in case of emergencies. In a life-or-death situation, this is very critical.

There are many GPS software being sold in the market today. Some of the most well-known brands are DeLorme Earthmate, Garmin Mobile Laptop GPS, and Microsoft Streets & Trips 2009 with GPS.

The Delorme Earthmate can be plugged to your mini laptop through a USB cable. You can connect the Garmin Mobile 10 Laptop GPS to your netbook via Bluetooth while Garmin Mobile 20 can be connected through USB cable. Microsoft’s GPS software also uses a USB cable for connectivity.

Why You Should Turn Your Netbook Into a GPS Device is from Best GPS Software

Did you know that you can download GPS software packages without paying a single dime?

Quite surprisingly, you will be able to find free-of-cost Global Positioning System software package on the net which could make your mobile phone or personal digital assistant into a GPS tracking device or navigation aid. Naturally, you’ll have to have a GPS receiver in or on your vehicle which the software would be able to read and then send the data to your PC or PDA. The software assists you find a vehicle or provide you directions to get to a place.

With a few of the free GPS software, you will also be able to record and watch your moves in detail on Google Earth or Google Maps. You will even be able to use the free service for live tracking using Google Earth or Google Maps. Downloading the GPS software and also use of the website, is absolutely free-of-cost (and there are no future plans to charge as this either). The web server in addition holds all the information you have ever recorded and submitted, so you will be able to always return and view your old recorded information at any time.

Some of the most common free GPS software programs include:

3-D Tracking, Amaze, Cetus GPS, Earthcomber, Easy GPS, Garmap, GPS Babel, GPS Track Maker, Trail Browser

And that is only a few. You will be able to find all kinds of these free GPS software programs in several different places. Employ the search engines.

As you go to download free GPS software, make sure you know what you’re getting as several of these free-of-cost offers come with restrictions and provisions for use. Similar to any other freeware programs, the programs could be a reduced version of the complete product that’s available for purchase. Occasionally the free product has limited functionality with features not enabled, other products are evaluation version and are disabled after a mentioned time (hours or days or use).

Using free GPS software you will be able to download programs which let you to recall and show aerial photographs, topographic maps and USGS landmarks. There are programs available which let you import scanned pictures and add latitude and longitude points and other additional data. With these downloads you will be able to have a valuable navigation assistant, position database handler, and GPS information converter.

Free GPS software programs are available for everyone, so simply look around and locate one which you like. Try it out and try to extract complete advantage of everything it has got to offer.

GPS Software – How I Download GPS Software Packages For Free is from Best GPS Software

GPS (Global Positioning System) is an effective tool to have on your Pocket PC, especially while driving to unknown locations, and to get directions to the area along with the relevant maps of the area.

How does a Pocket PC GPS Software work?

A GPS receiver is an electronic instrument which tells you where you are on a map display. These GPS navigation devices are essentially available as add-ons for Pocket PC PDAs and for the Palm OS. The entire system comprises of the GPS receiver and the GPS software.

These Pocket PC GPS navigational systems rely on the information passed on by the GPS satellite network which had been developed by the US Department of Defense during the time of the cold war. The receiver gets signals from these satellites which are processed by the Pocket PC GPS software to guide you regarding directions from a particular location to a particular location. The GPS software thus also includes maps which are a major need for translating the information from the GPS receiver to useful information.

The maps are usually obtained from various map data providers.

Apart from giving you step-by-step directions to getting to a particular location, the GPS software also guides you with information regarding an estimated time of arrival, and will guide you when you want to detour during traffic jams and other hurdles. Some of the softwares even use audio to guide you when you need to make a turn etc.

How to decide if you need to be buying a Pocket PC GPS Software?

So now comes the important part – how do you decide if you need to purchase a Pocket PC GPS software? Here are a few things to consider which should help you decide:

• Think about the number of times in a year you actually travel to unfamiliar places such as new cities and towns. Ideally, someone who does travel in this fashion for at least 5 times in a year needs to have a GPS software installed on his Pocket PC.
• Do you tend to get lost often when you drive around in your car? If so, you really need a GPS software with an audio guidance system which will prompt you when you need to make a turn etc.
• Do you often need to find a particular location if you are walking around to reach your destination? If so, a GPS software can and will guide you to your destination properly.
• Do you tend to travel often and carry a Notebook computer with you? In this case, you may have to look into purchasing a GPS accessory which simply connects to your Notebook computer via a USB port.
• Do you tend to rent cars when you travel? If so, you can have the GPS software installed on your Pocket PC help you find the different locations because of the portability benefit offered by the handheld devices.

So, which GPS software is right for me?

It all depends on your personal preferences, of course. But if you have gone through the list above, you should have a general idea of whether you need a GPS software in the first place, and if so, what features you want in the software.

• Ideally, the first thing to consider is the amount of disk space the software will occupy. This includes the disk space which will be occupied by the maps that will be needed for the software.
• As mentioned above, if you are the kind of person who gets confused while doing other things while driving and loses track of the directions, then a software which provides audio guidance for turns etc will be suitable for you.
• Different softwares have different types of on-screen displays of the maps. Familiarize yourself with the displays of these softwares before you buy them. Choose one whose display you find easy to use and maneuver on your handheld device while driving. Some of these softwares have a ‘Try-Before-You-Buy’ option which should suit your needs in this case.
• Ideally, the software should be easy to use and follow: most of its commands should be easy to understand and use. It does not make sense that you have to go through the user manual before you can figure out what is to be done. If you can use the software intuitively and can figure out and remember most of the commands easily then the software is the one you want.

So, what are you waiting for? Go ahead and pack your bags, load the car, pick up your Pocket PC with the GPS software and take your road trip!

Autor: unknown.

Buying Pocket PC GPS Navigation Software is from Best GPS Software